nx_tmplstale_gate.nx

nx_tmplstale_gate.nx -- INDEPENDENT GATE for the clerk desk (nx_tmplstale_lib): template registry, document lineage and staleness. Inherits nx_gate_verdict (gv_check per tooth, gv_bite for the non-vacuity cell, gv_verdict carries the verdict in the EXIT CODE). Fixture is assembled at RUNTIME under /tmp (never a production plane): two templates, two client documents, ONE clause revised; the gate asserts the exact stale set (the template and the document that carry the clause) AND that the fresh control (the template and document that do not) stays silent. license_tier: ORIGINAL